.page-faq {
  --faq-index-w: 236px;
  --faq-items-gap: 0.6rem;
  display: block;
}

.page-faq__crumb-wrap {
  padding-top: 1.4rem;
}

.page-faq__hero {
  position: relative;
  overflow: hidden;
  margin-top: 1.2rem;
  padding: clamp(2rem, 6vw, 4.6rem) 0 clamp(1.8rem, 4.5vw, 3rem);
  border-top: 1px solid var(--divider-line);
  border-bottom: 1px solid var(--divider-line);
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(0, 194, 255, 0.16), transparent 62%),
    radial-gradient(95% 85% at 94% 14%, rgba(255, 107, 53, 0.14), transparent 58%),
    linear-gradient(180deg, var(--deep-turf), var(--night-pitch));
}

.page-faq__hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    repeating-linear-gradient(to right, rgba(242, 247, 244, 0.05) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(to bottom, rgba(242, 247, 244, 0.05) 0 1px, transparent 1px 84px);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 88%);
}

.page-faq__hero-inner {
  position: relative;
  z-index: 1;
}

.page-faq__title {
  margin: 0.85rem 0 0;
  font-size: clamp(2.1rem, 7.4vw, 5.2rem);
  font-weight: 200;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--ink-white);
}

.page-faq__lede {
  margin: 1.4rem 0 0;
  max-width: 62ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(242, 247, 244, 0.82);
}

.page-faq__facts {
  list-style: none;
  margin: clamp(1.8rem, 4vw, 2.8rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.page-faq__fact {
  padding: 1rem 1.1rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-sm);
  background: var(--glass-layer);
  backdrop-filter: blur(6px);
}

.page-faq__fact .sy-num {
  display: block;
  color: var(--neon-orange);
}

.page-faq__fact-label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-white);
}

.page-faq__fact-note {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--index-sage);
}

.page-faq__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3vw, 2.6rem);
  padding: clamp(1.8rem, 4.5vw, 3.2rem) 0 clamp(2.4rem, 6vw, 4.5rem);
  align-items: start;
}

/* 分组索引 */
.page-faq__index {
  min-width: 0;
}

.page-faq__index-eyebrow {
  margin: 0 0 0.7rem;
}

.page-faq__index-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0.6rem;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq__index-item {
  flex: 0 0 auto;
}

.page-faq__index-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--divider-line);
  border-radius: 999px;
  background: rgba(6, 36, 27, 0.55);
  color: var(--ink-white);
  font-size: 0.875rem;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq__index-no {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--electric-blue);
}

.page-faq__index-link:hover,
.page-faq__index-link:focus-visible {
  border-color: var(--neon-orange);
  background: rgba(255, 107, 53, 0.14);
  color: var(--neon-orange);
  outline: none;
}

.page-faq__index-art {
  display: none;
  margin: 1.6rem 0 0;
  padding: 0.5rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: var(--glass-layer);
}

.page-faq__index-art img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

/* 分组 */
.page-faq__groups {
  min-width: 0;
  display: grid;
  gap: clamp(1.8rem, 4vw, 3rem);
}

.page-faq__group {
  min-width: 0;
  scroll-margin-top: calc(var(--topbar-h) + 1.2rem);
}

.page-faq__group-head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--panel-green);
}

.page-faq__group-no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--electric-blue);
}

.page-faq__group-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink-white);
}

.page-faq__group-head .sy-chip {
  margin-left: auto;
  flex: none;
}

.page-faq__list {
  margin-top: 1rem;
  display: grid;
  gap: var(--faq-items-gap);
}

/* 手风琴 */
.page-faq__item {
  border: 1px solid var(--divider-line);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(242, 247, 244, 0.045), rgba(242, 247, 244, 0.012));
  overflow: hidden;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq__item[open] {
  border-color: rgba(0, 194, 255, 0.42);
  background: linear-gradient(180deg, var(--panel-green), rgba(18, 82, 61, 0.72));
}

.page-faq__q {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin: 0;
  padding: 1rem 1.05rem;
  cursor: pointer;
  list-style: none;
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink-white);
  transition: color 0.2s var(--ease);
}

.page-faq__q::-webkit-details-marker {
  display: none;
}

.page-faq__q::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 0.55rem;
  border-radius: 2px;
  background: var(--electric-blue);
  box-shadow: 0 0 10px rgba(0, 194, 255, 0.75);
}

.page-faq__q::after {
  content: "＋";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--neon-orange);
}

.page-faq__item[open] .page-faq__q::after {
  content: "－";
}

.page-faq__item[open] .page-faq__q::before {
  background: var(--neon-orange);
  box-shadow: 0 0 10px rgba(255, 107, 53, 0.8);
}

.page-faq__q:hover,
.page-faq__q:focus-visible {
  color: var(--neon-orange);
  outline: none;
}

.page-faq__a {
  padding: 0 1.05rem 1.15rem 2.05rem;
}

.page-faq__a p {
  margin: 0 0 0.7rem;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(242, 247, 244, 0.84);
}

.page-faq__a p:last-child {
  margin-bottom: 0;
}

.page-faq__link {
  color: var(--electric-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq__link:hover,
.page-faq__link:focus-visible {
  color: var(--neon-orange);
  outline: none;
}

.page-faq__steps {
  list-style: none;
  counter-reset: faq-step;
  margin: 0.3rem 0 0.85rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq__steps li {
  counter-increment: faq-step;
  position: relative;
  padding-left: 2.1rem;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(242, 247, 244, 0.84);
}

.page-faq__steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--electric-blue);
}

/* 工单流程 */
.page-faq__flow {
  margin-top: 1.15rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.page-faq__flow-step {
  position: relative;
  padding: 1rem 1.05rem;
  border: 1px solid var(--divider-line);
  border-left: 3px solid var(--neon-orange);
  border-radius: var(--radius-sm);
  background: rgba(6, 36, 27, 0.55);
}

.page-faq__flow-no {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--electric-blue);
}

.page-faq__flow-title {
  margin: 0.3rem 0 0.4rem;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--ink-white);
}

.page-faq__flow-step p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(242, 247, 244, 0.78);
}

.page-faq__flow-figure {
  margin: 1.1rem 0 0;
  padding: 0;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: var(--glass-layer);
  overflow: hidden;
}

.page-faq__flow-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq__flow-caption {
  padding: 0.65rem 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--index-sage);
  border-top: 1px solid var(--divider-line);
}

/* 结尾出口 */
.page-faq__group--outro .page-faq__group-head {
  border-bottom-color: var(--neon-orange);
}

.page-faq__outro {
  margin-top: 1.15rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(255, 107, 53, 0.16), transparent 55%),
    var(--glass-layer);
}

.page-faq__outro-text {
  margin: 0 0 1.3rem;
  max-width: 62ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(242, 247, 244, 0.86);
}

.page-faq__contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq__contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--divider-line);
  border-radius: var(--radius-sm);
  background: rgba(11, 61, 46, 0.6);
}

.page-faq__contact-label {
  flex: none;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--index-sage);
}

.page-faq__contact-value {
  flex: 1 1 12rem;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink-white);
  overflow-wrap: anywhere;
}

.page-faq__contact-row .sy-copy {
  flex: none;
}

.page-faq__outro-actions {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

/* 响应式 */
@media (min-width: 640px) {
  .page-faq__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq__flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq__flow-step {
    border-left: 1px solid var(--divider-line);
    border-top: 3px solid var(--neon-orange);
    padding-top: 1.1rem;
  }
}

@media (min-width: 960px) {
  .page-faq__layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
  }

  .page-faq__index {
    position: sticky;
    top: calc(var(--topbar-h) + 1.5rem);
  }

  .page-faq__index-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq__index-link {
    justify-content: flex-start;
    border-radius: var(--radius-sm);
    border-color: transparent;
    border-left: 2px solid var(--divider-line);
    padding: 0.6rem 0.7rem;
    white-space: normal;
    width: 100%;
  }

  .page-faq__index-link:hover,
  .page-faq__index-link:focus-visible {
    border-left-color: var(--neon-orange);
  }

  .page-faq__index-art {
    display: block;
  }

  .page-faq__group-title {
    font-size: 1.875rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq__item,
  .page-faq__index-link,
  .page-faq__q {
    transition: none;
  }
}